gobeille



(No Model.) 2 Sheets-Sheet l. J. L. GOBEILLE.

JOINTER FOR DRESSING ANGLES FOR JOINTS. No. 280,813. Patented July l01883i N PETERS. Phubiilhnglaphcr. Waihingwn. n. c.

(No Model.) 2 Sheets-Sheet 2.

J. L. GOBEILLE.

JOINTER FOR DRESSING ANGLES FOR JOINTS.

No. 280,813. Patented July 10, 1883.

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N. PETERS, Pholoidhc gnpher. Wnhingtum 0.0.

UNITED STATES PATENT OFFICE.

JOSEPH L. GOBEI LLE, OF CLEVELAND, OHIO, ASSIGNOR OF ONE-HALF TO WM. M.GOBEILLE, OF SAME PLACE.

JOINTER FOR DRESSING ANGLES FOR JOINTS.

SPECIFICATION forming part of Letters Patent No. 280,813, dated July 10,1883. Application filed March 7, 1883. (No model.) I

To all whom it may concern.-

Be it known that I, Josnrn L. GOBEILLE, of Cleveland, in the county ofOuyahoga and State of Ohio, have invented a certain new and Improved Jointer for Dressing Angles for Joints; and I do hereby declare that thefollowing is a full, clear, and complete description thereof.

The special purpose of the above-saidjointer is for dressing the ends ofsegments for circles of various diameters, so thatthe ends of all thesegments fora circle of a given diameter shall have true radial linesand be of equal length to complete the circle.

The invention is also for dressing off the ends of pieces of moldingsfor frames-as picture-frames, for instances that the separate pieces mayhave the requisite miter to enable them to fit properly.

A further and more full description of the construction and operation ofthe j ointer is substantially as follows: For illustration, referencewill be had to the annexed drawings, making a part of thisspecification, in which Figure l is a side elevation of the jointer.Fig. 2 is a plan view. Figs. 3, 4, 5, and 6 are detached sections, andwill be alluded to in the. course of this description.

Like letters of reference refer to like parts in the several views.

On the top of the frame or standard A is a reciprocallysliding table,13. Said table is arranged to slide in grooves by means of ribs adaptedto fit in said grooves, one of which ribs is shown at O, and both areindicated by the broken lines a in Fig. 2.

D is a hanger depending from the under side of the table. E is also ahanger depend- ;ing from the under side of the stationary headpiece F,Fig. 2. In the hanger F is made fast one end of the rod G, passingfreely through the hanger D to the end of the standard by Which it issupported. Between the two hangers alluded to is coiled around the rod aspring, H, by which the table is moved back after be- .ing pushedforward, for a purpose presently shown.

In the standard I is j ournaled a revolving cutter or planer, consistingof the wheel or disk J, provided with planing-bits or cutters Said diskand cutters are substantially 'like'those in ordinary use, and form nopart of this invention; hence a detailed.description thereof is, notnecessary, as the same is well known in the arts.

Diagonally across the table B, above alluded to, is aT slot or groove,L, Fig.2. Said groove is at an angle of forty-five degrees in itsrelation to the face of the revolving plane J. In said groove is fitted,so as to slide therein, a block, M, Fig. 3. Said figure representsavertical section of the table longitudinally through the T-groove, andFig. 4 shows a vertical section of the table transversely through thegroove. A plan view of the said block M is shown in Fig. 6, in which arethree holesviz., 1, 2, and 3. The use of said holes will hereinafter beshown.

N is an adjustable gage arranged on the table directly over the grooveL, and retained in place or relation therewith by the screw bolt 0 andnut P, Figs. 3 and 4. In said figures it will be seen that the head ofthe bolt is under the shoulders I) and c'of the groove, and therebyprevented from being pulled upward on screwing down the. nut upon theclamp Q for binding the gage N to the table. Fig. shows a detached viewof the clamp Q,

from the under side or rib, c, of which pro jects a pin, (Z, adapted tofit in the holes 1 2 3 in the block M, above referred to, and as seen inFig. 3.

Practically, the use of the above-described j ointer is as follows: Forillustration, a circle, is required having a diameter of eight inchesand four segments to make up the circle. To this end the gage isadjusted in its relation to the groove L and the face of the planer asseen in Fig. 2. To obtain this position of the gage the side 00 thereofis arranged parallel to the line 9 and four inches therefrom. The saidline g is at right angles to the face of the planer. This adjustment ofthe gage will place the corner a thereof at a central longitudinal lineof the T-groove L. The line of the side so of the gage will be a radiusof the supposed circle; also, the face of the planer will be a radius ofsaid circle, the center being at the point 71 when the table is pushedforward to the line on of the head-piece F. The narrow space between theedge of the table and the said head-piece is in width equal to theamount to be planed off from the ends of a segment to make it the exactlength to form one of the four composing the circle above suggested. Thesegments of which the circles are to be made are first sawed out'in therough as near as practicable to the required size or length, the ends ofwhich are to be dressed off in a radial line to form the joint with theadjoining segment. For this purpose a rough segment is laid on thetable, as indicated by. the broken lines a in Fig. 2, in which it willbe seen that one end, a, of the segment rests against the side of thegage, and that the other, I), is near the face of the planer, with itsperipheral line against the check or shoulder A.

Now, on pushing the table slightly forward the end I) of the segmentwill be smoothed off and dressed at a radial line, and when this isdone, the segment is taken up and replaced with the end a near theplaner, with the dressed end resting full against the side of the gage.The table is now pushed forward full against the head-piece F, therebydressing off the end of the segment, which will be left the exact lengthto fill. up its place as a quadrant of the circle.

From the above it will be obvious that, as the table can be pushedforward no farther than to the edge of the head-piece F, the segmentsmust all be of an equal length and the ends dressed in radial lines, sothat the segments can be placed at once without further fitting in theirrespective places in the circle. As above said, the resiliency of thespring H pushes back the table from the head-piece after having beenpushed forward for the purpose specified;

Circles of less or of larger diameters than that above mentioned andhaving four segments are made by simply adjusting the gage more or lessdistant from the line g, according to the size of the circle. If morethan four segments are necessary to make a circle, it can be done asfollows: Suppose a circle twelve inches in diameter and of six segmentalsections is to be made. For this purpose the gage N is shifted so as tobring the side .r of the gage at an angle of sixty degrees to the faceof the planer and the shoulder thereof to the index-mark at 12 on theline I3, Fig. 2, in which. position it is made fast by the nut P, as inthe former case. The rough segment-s prepared for this circle are thenlaid upon the table, with one end resting against the side of the gageand the shoulder 1 and the opposite end near the planer, as in the caseabove described. The ends of the segments are smoothed and dressed offby the planer substantially in the same way as were the segments for theeight-inch circle. For circles of greater or of less diameter thantwelve inches-as, for instance, any one of the number on the line B orintermediate numbers, and having six segments to complete the circle-thegage is adjusted to such number, as before described, which will givethe exact length of each segment and the radii for the joints. use eightsegments to complete a circle. In that case the gage N is adjusted tothe line C, so that the side at of said gage will be at an angle offorty-five degrees to the face of the planer, and the shoulder z will beat the indexmark of the figures, which figures indicate the diameters ofcircles each composed of eight segments, which are dressed in the sameway as those above mentioned. The lines I5 and C and the figures orscale of diameters thereon are mathematically laid out, for the purposesspecified.

Other lines may be laid out to obtain a larger or smaller number ofsegments for circles. Those shown, however, are sufiicient for all0rdinary work, embracing circular molding, composed of segments.

To facilitate the changing of the gage for the purposes specified is theuse of the holes 1 2 3, above referred to. Said holes corresp ond to theT-groove L and the lines B and C, and are used as follows: On insertingthe pin cl (projecting from the clamp 1, above alluded to) in the hole1, the gage will be placed in the position shown in Fi 2 for dressingthe four segments first mentioned. Inserting the pin in the hole 2 willadjust the gage for the six segments, and inserting the pin in the hole3 will place the gage in position for the eight segments last mentioned.It will be obvious that by this means some little time is saved inchanging the position of the gage.

To adjust the gage to small circles the open end of the gage may be solong as to interfere with the face of the planer. To avoid this the gagemay be turned half-way around, so that the closed end may be toward theplaner, and then used in the same way as before.

I wish it to be understood that I do not confine myself to theparticular form of the gage N herein shown and described, as other formsof a gage can be used in connection with the table, lines and groovetherein, without changing the nature of the invention.

What I claim as my invention, and desire to secure by Letters Patent,is-

1.. In a machine for dressing the ends of seg ments for circles and themiters of right-angular frames, the reciprocally sliding table B, havingin the surface thereof a T-groove, L, arranged at a definite angle inrelation to the face of the planer J, and provided with an adjustablegage adapted to said' groove and se cured thereto, substantially asdescribed, in

combination with the revolving planer, as set forth, and for the purposespecified.

2. In a machine for dressing the ends of seg ments for circles and themiters of rightan'gular frames, the sliding table B and T-groove L,adjustable gage, and lines, as 13 and C, with their respective scale offigures arranged I11 some instances it is expedient to in relation tothe face of the revolving planer In testimony whereof I affiX mysignature in 10 at definite ang1es,.and in combination there'- presenceof two Witnesses. with, substantially as described, andfor the purposeset forth.- JOSEPH L. GOBEILLE.

3. In combination with the gageN and table, the block M, having thereinholes 1 2 3, clamp Witnesses: e

and pin d, adapted to engage said holes, screw J. H. BURRIDGE, o, andnut, substantially as described, andfor W. H. BURRIDGEQ the purposespecified.

